noun
Word Origin mid 16th century (denoting a tidal inlet of any size): from Latin aestuarium ‘tidal part of a shore’, from aestus ‘tide’.
Derivatives
Scrabble Points: 10
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Type of marine and riverine ecosystem
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Wikipedia